The 82-year old actor did what nobody else did at the tightly controlled Republican Orwellian Convention. He spoke from his heart, and said what he had on his mind. For sure it was confused, very confused, but at least it did ring true. And it was memorable and low on bullshit!
The not so subtle hyperliminal subtext was the giant gunslinger photo behind Mr. Clintwood. It said what the Republicans wanted to hear, what they love to think, i.e. that all we need is a strong man holding his six-shooters in steady hands. It was the night when Hollywood met its ultimate audience.
For an interesting comment on Clint Eastwood's use of the prop, read this article by Jonathan D. Moreno, a professor of medical ethics and health policy at the University of Pennsylvania.